When Should You Replace Your AC vs Repair It?
This is the question we get asked every single week. Customer calls, the unit is acting up, the tech writes a quote for a repair, and the customer asks the obvious question: is it worth fixing or should we just replace it?
This industry has a reputation, sometimes earned, of pushing replacements when a repair would do. We are not that company. We have customers running 18 year old systems we have nursed along, and we will tell you straight when a $400 repair will buy you another four summers.
Here is the honest math we run.
| System size | Square footage covered | Avg total install | Coastal-rated |
|---|---|---|---|
| 2.0 ton | 900 to 1,400 sq ft | $5,800 to $7,500 | +$400 to $700 |
| 2.5 ton | 1,200 to 1,800 sq ft | $6,500 to $8,300 | +$400 to $700 |
| 3.0 ton | 1,500 to 2,200 sq ft | $7,200 to $9,200 | +$500 to $800 |
| 3.5 ton | 1,800 to 2,600 sq ft | $7,900 to $10,200 | +$500 to $800 |
| 4.0 ton | 2,200 to 3,000 sq ft | $8,600 to $11,200 | +$600 to $900 |
| 5.0 ton | 2,800 to 3,600 sq ft | $9,800 to $13,500 | +$600 to $900 |
Includes new outdoor condenser, indoor air handler, line set if needed, full install, haul-away of old system, and labor warranty. Financing available.
Need a real second opinion?
If another contractor told you to replace, get our take first. We will tell you honestly.
1. How old is the unit?
This is the first question we ask. On the coast, here is the rough lifespan map:
- Under 8 years: repair. Almost always. The unit has plenty of life left.
- 8 to 12 years: depends on the failure. Read the rest of this article.
- 12 to 15 years: serious replacement consideration if the repair is significant. Borderline.
- Over 15 years: replace unless the repair is something tiny. You are buying borrowed time at this point.
Coastal homes age faster. Inland homes age slower. More on why coastal units fail sooner.
2. What part is failing?
Some failures are cheap. Some are expensive. Some are signs the rest of the system is on its way out.
Almost always repair (cheap parts):
- Capacitor
- Contactor
- Thermostat
- Drain line clog
- Float switch
- Filter housing or grille
Often repair, depends on age (medium parts):
- Outdoor fan motor
- Blower motor
- Refrigerant leak repair (if leak is reasonable to access)
- Reversing valve on a heat pump
- Evaporator coil (sometimes)
Replacement candidates (big parts):
- Compressor failure (the most expensive part of the system)
- Indoor coil leak combined with old refrigerant
- Multiple refrigerant leaks across the system
- Failed control board on an older inverter unit
3. What refrigerant does it use?
This is huge and a lot of homeowners do not know to ask. There are three main refrigerants in residential AC right now:
- R22: phased out. No longer manufactured. Existing supply is recycled and getting more expensive every year. If your unit uses R22 and is leaking, you are looking at a very expensive repair to top off the charge, and that money is essentially wasted because the unit is at the end of its life anyway. Replace.
- R410A: the standard for the last 15+ years, also being phased down. Plenty available right now, prices reasonable, but on its way out long term. Repair fine if everything else makes sense.
- R32 / R454B: the new generation, what we install today. No issues here.
If we open the unit and see R22 stickers, that is usually the moment we have the replacement conversation seriously.
4. The repair cost math
The rule of thumb we use is the 50% rule. If the repair is more than half the cost of a new system, replacement is almost always the better call.
For example: a 13 year old unit on the coast needs a new compressor at $2,800. A new system installed is $7,500. The repair is 37% of replacement. Borderline. Throw in the age and the salt air, and you are probably better replacing.
Same compressor on a 6 year old system? Repair, no question. Six more good years of life ahead.
5. Are your bills creeping up?
Compare your summer electric bills year over year. If they have been climbing for two summers in a row and you have not added a hot tub or anything, your AC is losing efficiency.
Old systems on the coast are typically running at 9 to 11 SEER. New systems are 14 to 18+ SEER. The difference in your bill can be 25 to 40% in summer months. Over the life of a new unit, that is real money.
That said, do not replace a perfectly fine 8 year old unit just because new ones are more efficient. The math on that does not work either. Wait until the system is genuinely failing and then replace with a high-efficiency model.
The short version
Replace if any of these are true:
- Unit is over 12 to 15 years old AND the repair is significant
- Compressor has failed
- Unit uses R22 refrigerant
- Repair cost is more than 50% of new install cost
- You have had two or more major repairs in the last two years
- Bills are climbing year over year on a unit over 10 years old
Repair if:
- Unit is under 10 years old
- Failure is a routine part (capacitor, motor, contactor, drain)
- Unit uses R410A or newer refrigerant
- System has been on twice-a-year maintenance and is otherwise in good shape
Want a real answer?
We will look at your unit, run the math with you, and tell you straight. No pressure, written quote, you decide.
📞 Call (850) 235-8834Why pick Quincy's for replacement?
If you are getting quotes for a new AC, here is how we stack up against typical PCB contractors. Use this list when you talk to whoever you talk to.
| What you should ask for | Quincy's Air | Typical contractor | Big chain |
|---|---|---|---|
| Manual J load calculation done | ✓ Always | Rarely | Sometimes |
| Coastal-rated coil quoted | ✓ Standard | Upsell | Upsell |
| Float safety switch on every install | ✓ Always | Sometimes | Extra cost |
| Drop cloths inside the home | ✓ Always | Sometimes | Rarely |
| Old system hauled away free | ✓ | Sometimes | Extra cost |
| Written labor warranty | ✓ | Verbal often | ✓ |
| Honest "do not replace yet" advice | ✓ Will tell you | Pushes sale | Pushes sale |
| Same techs that installed return for service | ✓ Low turnover | Different tech | Different tech |
| 47 years on the same coast | ✓ Since 1979 | 5 to 15 years | Variable |
| Family owned | ✓ | Sometimes | Corporate |
| Financing options | ✓ | Sometimes | ✓ |
When you compare quotes, do not just compare price. Compare what is actually included. A cheap quote without a load calc, drop cloths, float switch and coastal coil is a more expensive system long term.
Frequently asked questions
Should I repair or replace my AC?
Replace if any are true: unit is over 12 years old AND repair is significant; compressor failed; unit uses R22 refrigerant; repair cost is over 50% of new install; you have had 2+ major repairs in the last 2 years.
How long does an AC last in coastal Florida?
12 to 15 years on the coast with twice-a-year maintenance. 8 to 10 years without maintenance. Inland systems often run 14 to 18 years.
How much does a new AC cost in Panama City Beach in 2026?
$5,800 to $13,500 fully installed for residential systems, depending on size and features. A 3-ton system for an average PCB home runs $7,200 to $9,200. Coastal-rated coil adds $400 to $800.
What size AC do I need for my house?
Roughly 1 ton per 500 sq ft on the Florida coast, but proper sizing depends on insulation, ceiling height, sun exposure and ductwork. We do a Manual J calculation, if necessary on every quote. Wrong size = high bills and short life.
Should I replace my R22 AC even if it works?
If it works, keep running it. The minute you need a refrigerant repair, replace it. Topping off R22 is throwing money at an obsolete system. R22 is no longer manufactured and recycled supply is expensive.
Do you offer financing on a new AC?
Yes. Multiple term options for qualified customers. Approved in minutes. Ask when you call (850) 235-8834.
How long does AC installation take?
One full day for a typical residential change-out. We aim to be there in the morning and have you running cold by late afternoon.
How fast can you install a new system after I sign?
Usually next business day. In peak summer (June to July) it can be 1 to 3 days out.
Should I get multiple AC quotes?
Yes, two or three. Just compare what is actually included, not just the bottom number. Use the comparison table above as your checklist when you talk to other contractors.
What is the most efficient AC for Florida?
For Florida coast, look at SEER2 16 to 18 systems with variable speed compressors. The premium models pull more humidity, which matters more here than raw efficiency rating. We will explain options on the quote.